Home Postcode finder QLD Howitt Howitt postcode QLD Howitt is a locality in Queensland covered by postcode 4890. Postcode 4890 State or territory Queensland (QLD) Region North QLD Add a free Howitt business listing Be the first listing in Howitt Common questionsWhat is the postcode for Howitt?Howitt, QLD has the postcode 4890.What state is Howitt in?Howitt is in Queensland (QLD).Does postcode 4890 cover more than one suburb?Yes. Postcode 4890 covers 2 localities, so the postcode alone does not identify Howitt. Browse other postcodes in Queensland, or widen the search to every Australian postcode.